HUNTER, James Michael. Mormons and Popular Culture: Cinema, television, theater, music, and fashion. [s.l.]: ABC-CLIO, 2013. Dostupné online. ISBN9780313391675. S. 250–251. (anglicky)
newspapers.com
Clipped From The Salt Lake Tribune. The Salt Lake Tribune. Dostupné online [cit. 2018-12-09].
Mack Swain. The Alliance Herald. Dostupné online [cit. 2018-12-10]. (anglicky)
nytimes.com
MACKSWAIN EA; PIONEER FILM ACTOR; Appeared With Charlie Chaplin in Keystone Comedies Before Days of 'Stars.' [online]. 1935-08-27 [cit. 2018-12-10]. Dostupné online. (anglicky)